Apparatus for sawing elongated stock



ocL 7, 1958 H. E. sMITH 2,854,733

AP1 ARATUS FORSAWING ELONGATED STocK Fi1ed May 23, 1955 9 sheetSsheef 1 NVNToR HAROLD E. SMITH A ORNEY oct. 7, 1958 F11ed "a,y 23. 1955 H E.`sMTH APPARATUS FoR sWNG EEONGATED STocK HARoLD E. SMITH INvENTOR ocL 7, 1958 Fi1ed May 23, 1955 H. E. sMITH 2,854,733

APPARATUS FoR SAWNG ELONGATED STocx 9 sheetssheef 5 ZNvErroR HAROLD E. SMITH ()c. 7, 1958 H. E. sMITH 2,

APPARATUS FoR SAwING ELONGATED STocx Filed M 25. 1955 9 Sheetssheef 6 INVENTOR HAROLD E. SMITH ()ct. 7, 1958 H;E. MITH 2,854,733

APPARATUS FOR SAWING ELoNGATED STocK Filed uay 23- 1955 9 Sheets sheef 7 ATTORNEY ()ct. 7, 1958 H. E. sMITH APPARATUS FOR SAWNG BLONGATED STocK 9 sheets-sheef 8 Fed Ma 23, 1955 mm l I INVENT()R HAROLD E.SMITH AToRNEY United Stote Patent APPARATUS EoR SAvvnG ELoNGATD SToCK Hafo1d E. Sn1ifh, vefada1e, vvosh., osSfgnol' fo Kafsef A1uminom & Chemfoa1 cofpofofion, Oaksnd, CoHf., a cor oraon of Delawae AppHcaffoo May 23, 1055, sefial No. s10,107

10 Claims. (CL Zo9) This invention felateS fo a Saving devfce. Mofe parficolafly, it iS concerned vifh pfoviding a nove1 and efcient device fof the savving of elongated stock e. g. met aL In the SaWing of e1ongated Inota1sfock into long stfipS difficulty iS expefienced vvith the knovn saWing devioes in atfaining accuTate sawing of the meta1 stock, pafticu1a1- 1y When the stock iS of substantia1 1ength, fof exalnp1e on the orde1 of of mofe feet. A1so, n1ost of the known saWing deviceS afe fabficated ffon1 1afge steel castings vvhich vo111d be pfohibitivo in cost for fabfioating a savv of extenSive length, fof exan1ple on the ofdef of 30 of Inofe feet. FuftheTmofe, the nSua1 means employed fof II1oving the saw of cuftef IIlelT1bef lengthvviSe of the nleta1 Stock afe liff1ited in their accufaoy vvhen savving Stock of obStantia11ength. EXamoles of con1n1on n1eanS fo1 movff1g the savv of cuttef n1eInbef afe difect drive sofovv feed InechaniSn1S and hydfaulic cylindef n1echaniSInS. Both of theSe n1eanS are in1pfactica1 vvhen saWing n1eta1 otock of a length gTeatef th an about ten feet. Sowing device emp1oyif1g 2 Screw feed fo1 feeding the saW thTongh the II1ef1 Stock is in1practica1 fo1 a Inachine exceediI1g about ten feof in 1ength since the scfew can be suppofted only at its endS- Sch a ScfeW tendS to sag and when efflp1oyed fo 1ong lengths the degfee of deviation is apofeciable feslJ1fing in ioaccufate SaWiog. A hydfanHc type feed InochaniSn1 coInprising a hydraulic cy1inder, a piston Witf1inr said oylindof, and a Tod having ono extfeIIity aXed to the saw is Weak in stfocture for saWing metal Stock of 1ong length fesolting in inaccufate savving. Too, a hydfau1ic type feed n1echanisII1 has a fufther diSadvan tage in that tl1e hydfaulic cylindef, in ofdef to pTovide fun tTave1 for the saw, has to be as 1ong as the longest meta1 stock that it Wou1d be desifed to saw. This Tequires that additional 1ioof Space in aII1ollnt equa1 to t11e length of the cy1indef be pfovided fof tho saWing devico. Funbef, many of the pfiof aft Saw devices have the saw and n1otof assen1bly n10Unted beloW the vvofk vvhefeby cooling 1iqufd Sp1aShes on the II1otor ofeating n1ainten ance pfoblen1S.

Thefefofe, it is a pfiEnafy obiect of thiS invention to pTovide a novel SaWing device fof acoufately Sevefing elongated nleta1 Stock of 1ong 1ength.

It is a fofthef obiect of the invention to pfovide a nove1 device for SaWing Stock Whefeinfhefe is pfovided a susended SaW aSSeInb1y and whefein moveInent of said saW assembly fof SaWing as Wen as pushing the sevefed Ineta1 Stock froIn the Savving dovice is pfovided by a novel and efficient hydrauHcany actuated fack and pinion aS Semb1yl v It is anofhef obiect of the invention to pfovide a novel device for sawing elongated nleta1 Stock conStructed ffoIn SiInilar incfeTflenta1 0nitS Which facilitateS easy lengthening of the Savving device fof acco1Inodating longer n1efal stock. b

*Another obiect of the invention iS to pfovido a novel vice fo1 SaWing elongated n1eta1 sf()ck into stfipS, Which shapes.

iS so conStfucted that the vafioos coInponent paTts Inay be made of 1ight, easny fabTicated e1ements.

It iS alSo an obiect of the invention to pfovide a nove1 device fof SaWing elongated II1etal stock vvhich iS So co11 stfucted that it Tequffes a fI1inifnun1 aInount of 11oo1 spaco Within Which to opefate. r

It iS a furthef obiect of the invention fo provide a de vice for Savving elongatod ffletal Stock conStfucted ff()n1 Sifnilaf inofen1ental noits Whefein the incfeInenta1Units are econon1ically fabricated ffom standa d Stfuctura1 It is another obioot of tho invention to pfovide iT1 a device fof SaWing elongated Ineta1 Stock a puShef n1eanS, fof fen1oving Sevefed netal stock ffon1 the Savving devi ce, having a Safoty'n1eans fof prevonting dan1age to the Savv ing device upon ian1Ining of the Sevefed IIleta1 stock.

It is a1So an obiect of the invention to pfovide in ^a device for Sawing e1ongated meta1 Stock a back Stop ITleanS for sfoppingand aligning the nlefal stock being conveyed into the safving device Wherein the back stop n1eans nay be fetraoted aftof savving to allow tho Severed meta1 Stock to be femovedffom the SaWingdeviceothef obiectS and advantageS of tho fnvention Wi11 be fnore aopafent ffom a fevievv of the ensuing detai1ed deSofiptfon When taken in coniunction vith the draWin-gs.

In the accompanying dfawings, forIniog a paft of thiS specification, and in Which 1ike numefa1s are emp1oyed fo deSignate like pafts thToughouf the sanle= Figufe 1, compfiSing Figufes M and 1o, Shows a top p1an vieW of a sawing device embodying the instant invenfion.

Figufe 2, coInpfiSing Figufos Zo and Zo is a side elovational view 'of the device Shown i1 FigufeS 1o and 1.

Figufe 3 is an end e1evationa1 vievv of the device Shown in Figufe 2o and faken a1ong the1ine 33 of Fignre Z.v

FiguTe 4 is an expanded 1ongitudina1 Sectfonal vieW of a hydfaulicany actuated rack aod pinion asSeInbly 11Sed in the instant invention taken along the 1ine 44 of Figure 1 and having ooftain paftS bfoken avVay fo clafity. Figure iS an eXpahded veftical Sectional view faken a1ong. Hne Ss of Figure ZoohoWing the hydranHoany actuated Tack and pinion aSSen1b1y uSod in coniunction With a puney fof impafting movement to the saW assem, bly of the inStant invention. Fignre 6 iS an expanded veTtica1 secfiona1 vievv taken a1ong e Hne oo of Figufe 2o and ShoWing dotanS of the saw assemb1y. 4 v

FiguTe7 iS an expanded view ShoWing a back Stop n1echanisn1 fof tlSe With the saWing device with ceftaio paTfS broken away. Figufe 8 iS an expanded veffical Sectional vieW of tho clamping device of the back Stop mechaniSm, ShoWofo igUre 7 and taken a1ong the ne 88 of Figufe 7.

Figure 9 iS an expanded view partial1y in Section of the n1anua1 contfo1 fof the backStop nlechanisol taken along the Hne 99 of FiguTe 7.

Figufe 10 is an ex anded elevationa1 viow of the savv assembly and pUshef mechaoism attached thefeto as ShoWn in Figure Zo Wifhthe excepfion thot the pusheT InechanisTn is Shown as positioned dufing the SaWingof n1etal stock.

Fig11re 11 is an expanded partia1 elevational view of the Savv aSSeInb1y and pUShef InechaniSIn as Shown in Figufe 10 With the puShef fnechanisIn as positioned for pushing sevefed nletal stock.

Figure 12 iS an expanded paftial e1evatfona1 vievv Sifnf 1al to Figure 11, of the Saw aSSemb1y and puShef mecha nism showing the pusher nlechaniSn1 in inoperative posftion caused by accidenta1 jaTnning of the Sove ed n1eta1 Sfook.

Figure 13 is an eXpaoded voftioa1 oectiona1 vioW ofthe pushef mechanfsIn and also shoWo a Safefy device Whicff paSSos into honsing 31 thfough a. Sea1 34 and silT1ilarly pinion shaft 25 paSSes into and out of honsing 31 thTough seals 35. one extTemity of fack 20 and fack base 30 is suitably afxed to piSton fod 32, Said piSton fod pass ing ont of houSing 31 thfough seal 34 and thence into cylindef 27. Pistoo fod 32 has a s11itable piston 33, shoWn in daShed lines i1 Figufe 2o, at the oxtreo1ity fen1ote from fack 20 and baSe 30. PiSton 33 is of 3. dianetef Such that a close 5t is maintained between the ontef pefiphefy of piSton 33 and the insido Sufface of cylinde1 27 SI1ch that vvhen oi1 iS pun1ped ffom a Suitable sol11'ce (not Shovvn) into cylindef 27 through pipo 40 Said can fofce piston 33 and piston fod 32 to the left as shown in Figufe 2o. A Second pipe 41 is poSi fioned at the oppoSife eXtfen1ity of cylindef 27 such that as oi1 pasSing i11to cyHndef 27 thfough pipe 40 foTces piston 33 to the left the oil on the left Side of piSton 33 apped Within cyHndef 27 may exit thIough pipe 41. Thus, When piston 33 has been fofced to the 1eft as faf as possible it n1ay be Tetufned to ifs ofiginal position by fevefSing the oil f1ovv by a Suitable fevefSing valve, oot shown, vvhefeby oil iS pnInped in thfongh pipe 41 and allovved to f1ow out of pipe 40. AS piston rod 32 is Inoved to the left by fofcing oi1 thfough pipe 40, fack 20, vhich engageS the teeth of pioion 28, causes pinion 28 and pinion shaft 25 to Totate clockvviSe as shown in 1=igufe 2o. Pinion shaft 25 is suppofted by beafingS 24 Which aTe SI1itably suppoffed o1 elongated ffaInework 1.

SI1itable a01xed to pinion Shaft 25 and outSide of houS ing 31 is pulley 22 Which has a considefably 1a1ge1 dian1eter than pinion 20, fof exan1ple, the fafio of the dimetef of pUney 22 to that of pinion 20 may be 5:1. Cable 21 is vvfapped sevefal tin1es afound puney22 and theo paSSes ffon1 each side of puney 22, the left po1tio11 passing afoUnd poneys 35 and 37 of punoy aS seo1bly 38 located of the fight extfe1ity of elongated ffanleWork 1. The two ends of said cable 21 afo fe spectively attaohed to tWoopposite endS of the saW as son1bly 5. Thus, as fack 32 is nloved in a horizonta1 oifection, a hofizontal n1oveInent is iII11)afted to the saW oaffiage 5 by cable 21. Since the Tatio of the dianetefs of pUney 22 to pinion 28 is lafge, the tfanSlatofy of 11ofizontal 1T1otion of Saw cafriage 5 Will be pTopoffion atoly lafge felative to the tfaveI of fack 20. Fof eXan1ple, if the fatio between the diaI1etef of poney 22 to pinion 28 is 5:1 the tTanslatofy n1otion of saw caffiage 5 Wi11 be 5 tin1es as long aS the travel of fack 20 and, conSeqoenfly, the tfavel of piston 33. TiS pern1its the hy 1fau1ic cyHnder 27 to be only 5 as long as the longest sheet of plate which can be Sawed by the apparatUS.

In Figufe 15 and Figufe 25, at the Tight extfen1ity of olongated ffanlevvork 1 is shown a conventional hose foe1 105 and electric cabe feel 105 Which aTe s11itably a5ixed fo beam memberS 107 Shown axed to the top of elongated ffan1eWofk 1. Hose Teel 105 payS off coolant liquid hose 105 to fhe saW aSSenbly 5 to supply liquid coolant fTon1 3. S11itable soofe (not shown) to the Savving opefation. ElectTic cablo Tee1 105 payS off electfic cable 105 to supply e1ecfic power to motor 14 of SaW assemb1y 5. Cables 105 and 105, Which ae only paftially shovvn in Figofes 15 and 25, pass ovel Suppoft folleTS 108 af5xed to elongated ffameWoTk 1 and a1e Suitably mxed to saW aSSembly 5. Both hoSe fee1 105 and elect1ic cable fee1 105 antonlatically vvind and n1ainfain constant tenSion on hose 105 and cable 105, fespectively.

Back stop nlechanisn1s 40 Which function as the Ineans fo1 Stopping and alig11ing the n1etal Stock as the Stock iS fnoved onfo the hofizonta1 vofk Suppoffi11g sufface afe shoWn genefally in FigUTes 1 and 2. Mofe par5culaf de fail of an individoa1 back stop 111echanisn1 is Shovvn in FignTeS 7, 8 and 0. In general stop n1echaniSn1 40 coIn pfises a Stopping plate 50, a rack 51 on the end of Which said Stopping plate 50 is SI1itably a0ixed, said Stopping plate 50 being tfanSveTSe to the longitudina1 diInension of said fack 51, and guide plateS 52 a0ixed to eitheI Side of fack 51 and iuSt behind Stopping plate 50. To extTemify of fack 51 having-Stoppiog plate 50 amxod thefeto fs suppofted by a guide baI 53 and 0 t hed bo1ts 53 (Shown in Figure 5), the heads of boltS53 feSting in contact vvith the uppef Sufface of said guido bar 53. T he cfoss section of guide bar 53 iS fectangu1ar and of sl1ch Width that guide plateS 52 on either Sido of fack 51 afe in contact With eithef side of guide baf 53. The femaining poftions of fack 51 are SuppoTted Within a SubaSSembly 54. Sub-assembly 54 compSes tWo side )1ateS 55 each having an elongated slot 55 open at ono end thefeof. side plateS 55 are suppofted by 3. SI11tablo bfacket 57 con1pfising a veftica1 plate 58, Web plates 50 and a hofizontal plate 50. Bfacket 57 is asseII1b1ed With vveb plates 50 Welded at ffght angles to the ends of veftica1 plate 58. The upper poftion of Web plates 50 afe pfo vided .With cntout poftionS 51 to pfovido fof the lovvef poftions of veftical side plates 55. Iiofizontal plate 50 iS SUitably ioined, such as by Welding, to the top edgo of veftical plate 58 and the poftion of the top edge of veb plafeS 50 Which haS not been cut out. Side plates 55 afe 01en suitably ioined, snch as by Welding, in spaced felation to fit in the cut out poftion of veb plates 50 and also to have horizontal plate 50 paSS through elongated slotS 55.

Tho inner faceS of Side plates 55 have inside plates 52 and 52 SUitably attached thereto. Plates 52 are attached at the npper poftion of the opening betvveen the tWo Side plates 55 vvhich is above horizontal plate 50 While plates 52 afe attached below hofiZontal plate 50. The height of plate 52 is son1evvhat less than the height of this opper poftion of the opening in ofder that rack 51 Wil1 `fit sn1oothly thefein. It Wi11 be noted in Figufe 0 that the nppef portion of Said opening above horizonta1 plate 50 haS a T-Shaped cfoss section siInilar fo the Tshaped c oss Section of fack 51. Thus, rack 51 is suppofted Within thiS uppef opening by horizonta1 plate 50. Sido plafes 55 have holes 53 to pfovide for a shaft 54 opon vhich a. pinion 55 is InoIInted. sub-assen1bly 54 iS aS sen1bled vvith pinion 55 on shaft 54 Which pasSes thfough holes 53. Raok 51 iS fitted within the uppef T-shaped Space above hofiZonta1 plate 50 With the teeth poioted downwaTd and engaging the teeth of pinion 55.

(}uid5 baf 53 fits within the Space betvveen sido plates 55 below hoTizontal plate 50 and above the cI1t out poftion 51 of Web p1ateS 50. Guide baf 53 extends from Sub assembly 54 across elongated ffamework 1 betWeen a set of follefs 42. AS can be Seen f1-on1 FiguTe 7 guide baf 53 cannot extend entirely thTough sub-asseInbly 54 since pinion 55 is in the way. Sub-aSSembly 54 is completed by having cap plate 55 bolfed down over the uppef odges of side plates 55 and Tack 51. Sub-aSseInbly 54 is then bolted to the elongated ffamewofk 1. Rack 51 extends fof a. Substanfia1 diStance through said Sub-aSSen1bly 54 avvay frox1 elongated ffaIneWork 1 and is covefed by a suitable pfotective housing 57 Which extends out ffofo the elongated ffanlework 1. Pinion Shaft 54 has asuitable hand Whee1 58 attached to one extrenity thefeof. A handle 58 is -attached to said hand Whee1 58. By fotating handle 58, fack 51 IIay be adiuSted to hofizontally position stopping plafe 50 at any desifed position acfoss elongated ffaIneWork 1.

In ordef to quickly fetTact Stopping plates 50 froII1 the desifed stopping position in ofder to facilitate reII1ova1 of the Inetal Stock, an air cylindef Such as air cylindof 50 shovvn in Figure 7 is pfovided. The lowef exffonity of the piston fod of air cylindef 50 iS pivotaHy attached by pin 70 to one extfefnity of an angle plate levef 70. Angle plate levef 70 is pivotany attached by pin 71 to 5. Suitable bfacket 71 Which. in tufn is' attached to elongated ffamework 1. The oppoite arm of angle plate levef 70 haS side plates 72 SUitably affixed such as by bolts to eitheT Side thereof. The poftion of side plates 72 fenote ffon1the poftionS attached to angle plate levef 70 have slotS 74 fonning a subsfantia1 paft of 

